What's in CAMBRIDGE, CITY OF's water?
CAMBRIDGE, CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 10,520, over 6,503 connections.
CAMBRIDGE, CITY OF's record against the rest of the country
122 total violations and 81 health-based ones put CAMBRIDGE, CITY OF at the 99th percentile nationally for violation burden, rank 115 of 12,903.
Against the OH average
OH's 394 covered systems average 5.5 health-based violations each; CAMBRIDGE, CITY OF carries 81, more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
CAMBRIDGE, CITY OF's most recent violation on record is dated 2019-01-06, with the most recent health-based one dated 2019-01-06. Last reported to EPA: 05/15/2026.
The concern categories on record
CAMBRIDGE, CITY OF's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR); Interim Enhanced Surface Water Treatment Rule; Surface Water Treatment Rule
- Synthetic organic chemicals / pesticides / VOCs - flagged from: CARBON, TOTAL
- Disinfection byproducts - flagged from: TTHM
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What CAMBRIDGE, CITY OF's record does not cover
This is what CAMBRIDGE, CITY OF reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. This record - 81 health-based violations on file for CAMBRIDGE, CITY OF - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.